PROBLEMS on the top end

[batoutofshell]

did you maen you got 65mm pistons or +2mm pistons if you got +2mm pistons you have to have +2 rods to run them or they will hit the head

[fun_on_the_sand]

did you maen you got 65mm pistons or +2mm pistons if you got +2mm pistons you have to have +2 rods to run them or they will hit the head

508593[/snapback]

 

 

I got 66mm pistons. Stock are 64mm. I didnt modify the stroke, just the bore. They should't hit the head. But the domes on the stock head are 64mm and I am afraid that the piston curvature may hit the edge of the stock dome.

[batoutofshell]

Im stupped I would open it up anyway and lube those rusted spots and replace the o-rings just to be safe if your going to put the coolhead back on. wish ya luck!

[ogre03]

I'd pull the cool head off, check all the o rings make sure they are all in good working order. Be sure to use some grease to hold them in place when you reassemble everything. If your stroke is stock and you have the correct pistons in there than you shouldn't be hitting the head. You also shouldn't have Det. with the fuel you are running. Check the head and let us know what happens.

[fun_on_the_sand]

Im stupped I would open it up anyway and lube those rusted spots and replace the o-rings just to be safe if your going to put the coolhead back on. wish ya luck!

508598[/snapback]

 

Any sugestion in how to put the o-rings? they sugest to put some grease on them to keep them on place, is there any problem if I put too much grease?

[biggun6ss]

I just dabbed some grease on my finger and rubbed it al the way around the o-ring and have had no problems.

[fun_on_the_sand]

Hey guys, I checked the orings, everything was fine. I put the coolhead back and I still have that sound.

 

Thinking of all the things involved on detonation I have the following stuff on my bike:

 

- LS Dyna CDI Box

- Small electrode spark plug

- 18 cc domes

- C-12 gas (108 octane)

 

Does anything on this combination sounds out of place?

 

Next thing I am going to try this afternoon is to put back the stock head and see what hapens, may they didn't give me the right gas, i don't know

[Justintoxicated]

Is the sound coming from the side with the water pump?

 

Put your ear next to the water pump cover.

 

I noticed an increase in noise when I raised the compression (switched to cool head) and ported...It' skind of a tick toc sound. Even with 111 race gas...it is normal.

 

You can check your pump to make sure it is in working order. if you want to further investigate, I can only hear the noise at idle, otherwsie the pimpes cover it up.

[fun_on_the_sand]

Is the sound coming from the side with the water pump?

 

Put your ear next to the water pump cover.

 

I noticed an increase in noise when I raised the compression (switched to cool head) and ported...It' skind of a tick toc sound.  Even with 111 race gas...it is normal.

 

You can check your pump to make sure it is in working order. if you want to further investigate, I can only hear the noise at idle, otherwsie the pimpes cover it up.

509306[/snapback]

 

It is kind of a tic toc sound and you can hear it at idle, but, how come that can be normal??

[Justintoxicated]

It is kind of a tic toc sound and you can hear it at idle, but, how come that can be normal??

509357[/snapback]

 

Is it coming fromt eh water pump side?

 

I noticed it as well and it is normal, I think its from the water pump. Been running fine for quite some time. I'm not sure why I never noticed it before I ported my banshee and added the coolhead, I think the sound was quieter and not as noicable before.

 

I can't say you have the exact noise im talking about or not, but it sure seems like it...

[batoutofshell]

I thought you said the sound was coming from the head, The best way to tell exactly is to hold a wooden or steel rod to the point and hold it to your ear. the same way a mech finds bad lifters in a auto engine.

[fun_on_the_sand]

You can't really tell where the sound comes from. It comes from somewhere on the engine. Not the pipes, nor the transmision.

[batoutofshell]

do what I said tommorrow and you will be able to pinpoint so nothing gets messed up.

[duner]

If you want to make sure your pistons are not hitting your head do this.

Revove your head,get a 1/4" piece of thin solder,run up piston to 1/2" from top of bore,then lay the solder on top of piston at outer edge of piston paralell to wrist pin. Bolt up head not using o rings,1 dome at a time. Slowly turn over piston till it goes over TDC. Then unbolt head & measure thinnest point of solder. This will be you squish.

[Capone]

If you want to make sure your pistons are not hitting your head do this.

Revove your head,get a 1/4" piece of thin solder,run up piston to 1/2" from top of bore,then lay the solder on top of piston at outer edge of piston paralell to wrist pin. Bolt up head not using o rings,1 dome at a time. Slowly turn over piston till it goes  over TDC. Then unbolt head & measure thinnest point of solder. This will be you squish.

509496[/snapback]

but I used clay.

Edited April 29, 2006 by Passion99